How would you like a phone without any buttons (volume/power) ??

Just wondered, LG G2 has a KnockOn feature which eliminates the need for a power button (power on off can be a software feature) and it works perfectly and there are more apps in the Play store to replicate this feature. And volume I always change using the on screen slider, except maybe when on a phone call. The 3 home buttons are already replaced by software buttons. So would it make sense for the next update to remove the buttons entirely? What do you feel?